Table Giving An Estimate Of The Amount Of Water Transpired From The Leaves Of Various Crops During The Growing Period

Crop.

Number of Plants to One Acre.

Water given off per Plant per Day.

Total Water given off by Crop per

Day per Acre.

Period of Growth in Days.

Water evaporated by Crop during Period of Growth per Acre.

Approximate Amount of Water in Crop when

Mature per Acre.

Total Water taken out of Soil by Evaporation, and Weight per Acre.

Equivalent to Rain in Inches.

oz.

lb.

tons.

1. Sunflower...

10,000

24

15,000

150

1000

at 4 lb. = 40,000 lb.

1000 + 18 = 1018

10

2. JerusalemArtichoke

10,000

24

15,000

150

1000

„ 4 „ = 40,000 „

1000 + 18 = 1018

10

3. Beetroot ...

70,000

8

35,000

150

2344

„ 1 „ = 70,000 „

2344 + 31 = 2375

23

4. Cabbage (summer)

10,000

24

15,000

150

1000

„ 4 „ = 40,000 „

1000 + 18 = 1018

10

5. Lettuce

40,000

16

40,000

130

2321

„ 3 „ = 120,000 „

2321 + 54 = 2375

23

6. Rhubarb ...

5,000

48

15,000

180

1205

„ 5 „ = 25,000 „

1205 + 11 = 1216

12

7. Dwarf Beans

40,000

16

40,000

100

1785

„ 1/2 „ = 20,000 „

1785 + 9 = 1794

17

8. Runner Beans

30,000

32

60,000

100

2678

„ 1 „ = 30,000 „

2678 + 13 = 2691

26

9. Potatoes ...

5,000

48

15,000

120

888

„ 5 „ = 25,000 „

888 + 11 = 899

8

10. Turnips ...

60,000

16

60,000

100

2678

„ 1/2 „ = 30,000 „

2678 + 13 = 2691

26

11. Apples

320

1400

28,000

150

1875

-

1875

19

12. Pears ..........

320

1800

36,000

150

2400

-

2400

24

13. Plums ..........

320

2000

40,000

150

2678

-

2678

27